·The record format containing this
keyword is immediately followed by the record format using SFLCTL keyword.

·We can define at most 512 subfile
records in a display file.

·There can be 12 subfiles active at
the same time.

Example

Here in the example we are creating
one subfile record RECSFL and immediately after that there is a subfile control
record RECCTL which has been associated with the subfile record with the
keyword SFLCTL(RECSFL).